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Title
FrogAmphibians;Anura #124589737
Description
A frogàis any member of a diverse and largelycarnivorousàgroup of short-bodied, taillessamphibiansàcomposing theàorderàAnura& x28;Ancient Greekàá¼â¬Ã½-,àwithout +àÿá½ÂÃÂì, tail& x29;. Theoldest fossil & x22;proto-frog& x22;àappeared in theàearly TriassicàofàMadagascar, butàmolecular clock datingàsuggests their origins may extend further back to theàPermian, 265 million years ago. Frogs are widely distributed, ranging from theàtropicsàtoàsubarcticàregions, but the greatest concentration ofàspecies diversityàis inàtropical rainforests.